Due to the demand and dedication we put into every order, please allow 4-6 weeks for SIEGE to ship your suppressor. We promise it will be worth the wait!This is an NFA item and it must be transferred to your preferred FFL & SOT.  Please email the FFL & SOT you would like to use for transfer along with your order number to: info@siegesuppressors.com ABOUT THE ROC556L:The ROC556L by Siege Suppressors uses Linear Diffuser Array technology.Video -  What happens inside of the Linear Diffuser Array?  https://www.youtube.com/watch?v=II-aLNxDYxcThe ROC556L is built around a very high flow rate achieved by SIEGE’s patented Linear Diffuser Array, which pushes gases, unburnt powder, and other particulate matter forward through a sequence of flow cells so they exit cleanly at the muzzle. That high flow rate keeps gas-operated rifles cycling naturally with less tuning required and directs contaminants downrange instead of back into the action or the shooter’s face. The result is consistent, quiet shooting with no cleaning or disassembly needed, and every ROC556L is bonded into a single monolithic structure for exceptional strength, erosion resistance, and long service life.SPECS:Caliber: 5.56mmLength: 7.70”Length w/o mount: 7.45"Diameter: 1.5”Weight: 18.06 ozMaterials: Precipitation Hardening SS & Inconel Linear Diffuser ArrayFinish: NitrideFull Auto RatedNo Barrel Length RestrictionsWHATS IN THE BOX:ROC556L Suppressor2 - Siege Spanner wrenchesSiege OMNIHEX Direct Thread Mount5.56mm vented removable endcap

Due to the demand and dedication we put into every order, please allow 4-6 weeks for SIEGE to ship your suppressor. We promise it will be worth the wait!This is an NFA item and it must be transferred to your preferred FFL & SOT.  Please email the FFL & SOT you would like to use for transfer along with your order number to: info@siegesuppressors.com ABOUT THE ROC556L:The ROC556L by Siege Suppressors uses Linear Diffuser Array technology.Video -  What happens inside of the Linear Diffuser Array?  https://www.youtube.com/watch?v=II-aLNxDYxcThe ROC556L is built around a very high flow rate achieved by SIEGE’s patented Linear Diffuser Array, which pushes gases, unburnt powder, and other particulate matter forward through a sequence of flow cells so they exit cleanly at the muzzle. That high flow rate keeps gas-operated rifles cycling naturally with less tuning required and directs contaminants downrange instead of back into the action or the shooter’s face. The result is consistent, quiet shooting with no cleaning or disassembly needed, and every ROC556L is bonded into a single monolithic structure for exceptional strength, erosion resistance, and long service life.SPECS:Caliber: 5.56mmLength: 7.95”Length w/o mount: 7.45"Diameter: 1.5”Weight: 19.96 ozMaterials: Precipitation Hardening SS & Inconel Linear Diffuser ArrayFinish: NitrideFull Auto RatedNo Barrel Length RestrictionsWHATS IN THE BOX:ROC556L Suppressor2 - Siege Spanner wrenchesSiege STRONGHOLD HUB Adapter & DEFENDER 2 Port Brake 1/2x28 - Plan B Compatible5.56mm closed removable endcap